Vacuum-cleaner.



G. CLBMENTS. VACUUM CLEANER. APPLIGATION FILED MAR. 17, 19m

Patented Feb.23,191'5.

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GEORGE CLEMENTS, 0F CHICAGO, ILLINOIS.

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VACUUM-CLEANER.

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; Specification of Letters Patent.

Patented Feb. 23, 19115.

` Application led March 17, 1913. Serial No. 754.707.

for holding the lvacuum cleaner nozzle slightly above the floor level,in order that it may not bury itself in long napped rugs and therebyboth impede the progress of the air and the progress of the machine.

It is illustrated in one form in the accom- Oanying drawings, wherein-Figure 1 shows a side elevation of the machine; Fig. 2, a bottom planView; Fig. 3, a section along line 3-3 of Fig. 2; `and Fig. 4, a bottomplan view of amodified form.

lLike parts are indicated by, the same letters throughout the severalfigures.

The pump chamber A carries at its top the motor housing A1 in which iscontained a motor not shown driving a pump or fan in the chamber A alsonot shown. The pump or kfan discharges into a bag or dust receptacle A2which is removably supported in' a clip Aa on the handle A4. The handleA4' is provided. at its lower end with a fork A5 pivoted at either sideto the housing or chamber A. The lugs A6 limit the rotation of thehousing with respect to the handle. Electricity to drive the motor iscarried through the cable A7 from the switch A8 to titi the motor. Thecable A leads to any suitable source of power.4 The housing A haslocated at its -bottom the suction or vacuum or nozzle chamber B whichcommunicates with the 'Suction nozzle B1 and also communicates throughthe ports B2 with the interior of the fan chamber. The cap B3 closes theopening B in the bottom of the suction chamber.

Arranged about the opening B4 and concentric with it but slightlyremoved therefrom is a curved ridge C which ridge is of slightly greaterradius pf curvature than the largest radius of the cap B3. The curved,substantially semicircular wire member C1 is adapted to rest against'theridge C and be clamped between it and the bottom of the part B by theedge of the cap B8. "llhis comprising a cap screw-threaded in the ing4arms C2 carrying rollers C3 which rollers when in the position indicatedin Figs. 1, 2 and 3 project slightly below the nozzle B1 and togetherwith the caster C* support the device, and allow it to roll along thek Hground. It will be noted that owing to the curved cross section of thearms and semicircular portion a maximum degree of strength is had. Thepressure of the cap effectually clamps the semicircular member againstthe curved rid e and bottom of the housing so as to hold 1t rigidly inposition.

In the' modified form shown in Fig. 4, a broader nozzle D is used. Thisnozzle contains the usual type of brush D1 and owing to the breadth ofthe nozzle the ridge C is dispensed with. The rear edge of the nozzle isrecessed at D2. A semicircular portion of the roller supporting frame isplaced in position surrounding the aperture B4( The cap is screwed inlposition and the roller supporting frame is then clamped between thecap and the nozzle at D2, the elbows D3 being also pressed against theedge of the nozzle to hold the frame rigidly in position. It will benoted that the frames used in Figs. l, 2, 3 an'd 4 are identical, butwhere the nozzle is removed from. the openingit isnecessary to use thecurved ridge. Where the nozzle is adjacenty the openingthe curved ridgemay be dispensed with, and the nozzle itself serves as a back for theframe to which the nozzle may be clamped by the cap, and when theoperator wishes to use his Avacuum cleaner under such circumstances asabove suggested where the nap of the rugy is long and especially wherethe nozzle ought not to come into contact with the surface, he merelyremoves the cap, places the frame iny position and tightening the capclamps the frame in fixed relation to the housing, thus providing alight, conveniently removable, fixed and sufficiently rigid, auxiliaryroller or wheel support for the cleaner housing.

It will be evident that while I have-shown in my drawing an operativedevice, still many changes might be made in size, shape and arrangementofpparts without departing materially from the spirit of my invention,and l wish, therefore, that my drawing be regarded as in a sensediagrammatic.

The subject matter containedin this application is illustrated in itsentirety or in part in each of my co-pending applications,

Nos. 705,398, filed June 24,1912, vacuum cleaner, and 728,566, filedOctober 30, 1912, Vacuum cleaner,

The roller support 0r axle which is made up of the curved wire member C1and forwardly extending arms D2 bent t0 fori/n the elbows D3 is in eectthe wheel supporting frame or axle.

l. In a vacuum cleaner the combination with a suctionnozzle, ofan'auxiliary supporting frame removably mounted adjacent the nozzle,ground contacting rollers carried thereby, and means for holding saidframe in a position ofs'ubstantial parallelism with the axis of thenozzle, said means comprising a cap screw-threaded in the vacuum cleanercasing and engaging 'a p0rtion of said frame.

2. In a vacuum cleaner the combination with. a suction nozzle of anauxiliary supporting frame removably mounted adjacent the nozzle, groundcontacting rollers carried thereby and means for holding said frame in aposition of substantial parallelism with the axis of the nozzle, saidmeans comprising a cap screw-threaded in the vacuum cleaner casing andengaging a portion of said frame, the frame being provided with a curvedportion adapted to surround said cap, a ridge mounted on the vacuumcleaner and concentric with saidy cap and in engagement with said curvedportion.

3. lIn a vacuum cleaner the combination' with a suction nozzle of anauxiliary supporting frame removably mounted adjacent the. nozzle,ground contacting rollers carried thereby and means for holding saidframe in a position of substantial parallelism with the axis of thenozzle, said means comprising a vcap screw-threaded in the vacuumcleaner casing, a recess in opposition to said cap, said recess and saidcap engaging said frame to holdit in position.

In testimony whereof, I aix my signature in the presence of twowitnesses this 14th day of March, 1913.

GEORGE CLEMEN TS.-

